JPS51137402A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS51137402A JPS51137402A JP50061754A JP6175475A JPS51137402A JP S51137402 A JPS51137402 A JP S51137402A JP 50061754 A JP50061754 A JP 50061754A JP 6175475 A JP6175475 A JP 6175475A JP S51137402 A JPS51137402 A JP S51137402A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- magnetic recording
- transfer characteristic
- layer
- worse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006247 magnetic powder Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve transfer characteristic of ion oxide type magnetic powder with small particle size by providing, as magnetic layer, a thin upper layer which is worse in transfer characteristic than the lower layer.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50061754A JPS51137402A (en) | 1975-05-23 | 1975-05-23 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50061754A JPS51137402A (en) | 1975-05-23 | 1975-05-23 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS51137402A true JPS51137402A (en) | 1976-11-27 |
Family
ID=13180251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50061754A Pending JPS51137402A (en) | 1975-05-23 | 1975-05-23 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS51137402A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941901A (en) * | 1955-07-08 | 1960-06-21 | Agfa Ag | Magnetic impulse record carriers |
| JPS4828681A (en) * | 1971-08-19 | 1973-04-16 | ||
| JPS5046103A (en) * | 1973-08-27 | 1975-04-24 | ||
| JPS51119204A (en) * | 1975-04-11 | 1976-10-19 | Fuji Photo Film Co Ltd | Magnetically recording element |
-
1975
- 1975-05-23 JP JP50061754A patent/JPS51137402A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941901A (en) * | 1955-07-08 | 1960-06-21 | Agfa Ag | Magnetic impulse record carriers |
| JPS4828681A (en) * | 1971-08-19 | 1973-04-16 | ||
| JPS5046103A (en) * | 1973-08-27 | 1975-04-24 | ||
| JPS51119204A (en) * | 1975-04-11 | 1976-10-19 | Fuji Photo Film Co Ltd | Magnetically recording element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS51149008A (en) | Magnetic recording medium manufacturing method | |
| JPS5250598A (en) | Rare earth-cobalt magnet | |
| JPS5329703A (en) | Production of thin magnetic film | |
| JPS5413997A (en) | Magnetic recording medium and its manufacture | |
| JPS5315802A (en) | High density magnetic recording material | |
| JPS539125A (en) | Dry type devloping powder and its manufacture | |
| JPS5347998A (en) | Magnetic alloy for magnetic shielding | |
| JPS51129202A (en) | Magnetic recording medium | |
| JPS5296922A (en) | Permanent magnet material | |
| JPS5367406A (en) | Magnetic recording medium and its production | |
| JPS5341202A (en) | Novel magnetic recording medium | |
| JPS5295097A (en) | Magnetic recording material | |
| JPS5361310A (en) | Production of magnetic recording medium | |
| JPS5233713A (en) | Thin film magnetic head | |
| JPS5330800A (en) | Peparing magnetic thin film | |
| JPS5246803A (en) | Structure of magnetic medium | |
| JPS5249500A (en) | Mnbi alloy magnetic material with excellent oxidation stability | |
| JPS5275700A (en) | Production of magnetic iron oxide powder including co | |
| JPS5233714A (en) | Thin film magnetic head | |
| JPS51123113A (en) | Medium for magnetic recording | |
| JPS5238202A (en) | Magnetic recording body | |
| JPS534895A (en) | Manufacture of needle-shaped magnetic iron particles | |
| JPS5269897A (en) | Fabrication of magnetic thin films of iron oxides | |
| JPS5224514A (en) | Thin film magnetic head | |
| JPS5383721A (en) | Thin film magnetic head |